36656641 has 32 divisors (see below), whose sum is σ = 47278080. Its totient is φ = 27684096.

The previous prime is 36656639. The next prime is 36656647. The reversal of 36656641 is 14665663.

It is a cyclic number.

It is not a de Polignac number, because 36656641 - 2¹ = 36656639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36656641.

It is not an unprimeable number, because it can be changed into a prime (36656647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161370 + ... + 161596.

It is an arithmetic number, because the mean of its divisors is an integer number (1477440).

Almost surely, 2^36656641 is an apocalyptic number.

It is an amenable number.

36656641 is a deficient number, since it is larger than the sum of its proper divisors (10621439).

36656641 is a wasteful number, since it uses less digits than its factorization.

36656641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333.

The product of its digits is 77760, while the sum is 37.

The square root of 36656641 is about 6054.4728094195. The cubic root of 36656641 is about 332.1882158448.

The spelling of 36656641 in words is "thirty-six million, six hundred fifty-six thousand, six hundred forty-one".